/Engine/Plugins/MovieScene/SequencerScripting/Source/SequencerScripting/Public/ExtensionLibraries/MovieSceneSequenceExtensions.h
Return the user marked frames
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sequencer|Sequence", Meta=(ScriptMethod)) static [TArray](API\Runtime\Core\Containers\TArray)< [FMovieSceneMarkedFrame](API\Runtime\MovieScene\FMovieSceneMarkedFrame) > GetMarkedFrames ( [UMovieSceneSequence](API\Runtime\MovieScene\UMovieSceneSequence) * Sequence )